Description

(Natural Desiccated Thyroid Extract from Porcine Source)

Mid-Strength Natural Thyroid Hormone Replacement for Hypothyroidism

Armour® Thyroid USP 50 mg is a prescription-strength, natural desiccated thyroid (NDT) formulation derived from the thyroid glands of pigs. Each tablet contains a standardized ratio of the two essential thyroid hormones: levothyroxine (T4) and liothyronine (T3). These hormones play a central role in regulating metabolism, energy production, mood, cardiovascular function, and thermoregulation.

This mid-range 50 mg strength is suitable for patients requiring moderate-dose hormone replacement, particularly those titrating from lower doses or transitioning from synthetic monotherapy. Armour Thyroid is widely trusted by healthcare providers and patients seeking bioidentical thyroid support using natural, full-spectrum hormone therapy.

Key Features and Benefits

• Contains both T4 (thyroxine) and T3 (triiodothyronine)—mimicking human thyroid output

• Derived from natural porcine thyroid glands, standardized to USP specifications

• Ideal for patients not fully responsive to T4-only therapy

• Supports key thyroid-related functions: metabolism, energy, mood, skin, hair, and weight balance

• 50 mg strength enables stepwise titration in therapy for optimized control

• Free of gluten, artificial colors, and common irritants

Composition per 50 mg Tablet

• Levothyroxine (T4): Approximately 19 mcg

• Liothyronine (T3): Approximately 4.5 mcg

Armour Thyroid is manufactured under stringent USP monograph standards, ensuring uniform hormone content and quality in each batch.

Indications

Armour Thyroid USP 50 mg is indicated for:

• Hypothyroidism (primary, secondary, or tertiary)

• Hormone replacement post-thyroidectomy or radioactive iodine therapy

• Hashimoto’s thyroiditis

• Management of non-toxic goiter or nodular thyroid disease

• Adjunctive therapy in thyroid cancer suppression protocols (where appropriate)

This product is not intended for use in euthyroid patients or for weight loss purposes.

Mechanism of Action

Thyroid hormones regulate basal metabolic activity across nearly all tissues in the body. Armour Thyroid’s natural composition delivers both T4 (a prohormone) and T3 (the active hormone), helping to:

• Stimulate mitochondrial energy production

• Promote oxygen utilization and protein synthesis

• Regulate body temperature and weight

• Enhance neurological function, focus, and mood

• Normalize cardiovascular responsiveness and cholesterol metabolism

For patients with impaired conversion of T4 to T3—due to stress, inflammation, or genetic polymorphisms—the inclusion of T3 in Armour Thyroid may lead to greater symptomatic relief than T4-only therapy.

Dosage and Administration

• Armour Thyroid 50 mg is typically used as a maintenance dose or in titration

• Dosage is individualized based on serum TSH, Free T4, and Free T3 levels, along with clinical response

• Initial doses often begin at 30 mg to 60 mg, increasing gradually in 15–30 mg increments every 2–3 weeks

• Should be taken once daily, preferably in the morning on an empty stomach, 30–60 minutes before meals or other medications

Monitoring

• TSH levels: Re-evaluate every 6–8 weeks during titration, then every 6–12 months when stable

• Free T4 and Free T3: Particularly useful when symptoms persist despite normal TSH

• Monitor for signs of under- or over-replacement, especially in elderly or cardiac patients

Safety and Precautions

• Contraindicated in untreated adrenal insufficiency, thyrotoxicosis, or acute myocardial infarction

• Caution advised in patients with cardiovascular disease, osteoporosis, or diabetes

• Not intended for cosmetic use or weight loss in individuals with normal thyroid function

• Dosage adjustments may be required during pregnancy, postpartum, or major illness

• Should not be used interchangeably with synthetic thyroid medications without provider oversight

Side Effects

Excessive dosing or sensitivity may result in symptoms such as:

• Palpitations or irregular heartbeat

• Insomnia or nervousness

• Excessive sweating or heat intolerance

• Menstrual irregularities

• Weight loss or increased appetite

Adverse effects are typically related to over-replacement and can be avoided by using the lowest effective dose.

Storage

• Store at controlled room temperature (15–30°C / 59–86°F)

• Protect from light, heat, and moisture

• Keep in tightly closed container

• Keep out of reach of children

Ideal Patient Use Cases

• Patients requiring mid-range thyroid hormone replacement

• Individuals transitioning from synthetic levothyroxine to natural therapy

• Patients with persistent symptoms despite normal TSH on T4-only therapy

• Those with conversion inefficiency, adrenal fatigue, or autoimmune thyroid disease

• Providers implementing personalized thyroid hormone protocols

Natural. Balanced. Time-Tested.

With its reliable dual-hormone formulation, Armour Thyroid USP 50 mg offers a balanced, bioidentical approach to thyroid health. It has been used for decades as a trusted solution for patients seeking effective symptom relief and optimized metabolic function when synthetic therapies fall short.